Mercurial > dive4elements > river
view flys-artifacts/doc/mapserver/elbe-mapfile.map @ 5779:ebec12def170
Datacage: Add a pool of builders to make it multi threadable.
XML DOM is not thread safe. Therefore the old implementation only allowed one thread
to use the builder at a time. As the complexity of the configuration
has increased over time this has become a bottleneck of the whole application
because it took quiet some time to build a result. Furthermore the builder code path
is visited very frequent. So many concurrent requests were piled up
resulting in long waits for the users.
To mitigate this problem a round robin pool of builders is used now.
Each of the pooled builders has an independent copy of the XML template
and can be run in parallel.
The number of builders is determined by the system property
'flys.datacage.pool.size'. It defaults to 4.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Sun, 21 Apr 2013 12:48:09 +0200 |
parents | 8ad0331e444f |
children |
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MAP NAME "Elbe" STATUS ON SIZE 600 400 MAXSIZE 4000 EXTENT 3590790.616790 5648985.748203 3868521.325854 5922665.254118 UNITS DD #FONTSET "fontset.txt" IMAGECOLOR 255 255 255 PROJECTION "init=epsg:31466" END OUTPUTFORMAT NAME agg DRIVER AGG/PNG IMAGEMODE RGB END CONFIG "MS_ERRORFILE" "logs/flys-elbe-wms.log" DEBUG 5 WEB METADATA "wms_title" "FLYS-3.0 WMS (ELBE)" "wms_onlineresource" "http://czech-republic.atlas.intevation.de/cgi-bin/elbe-wms" "wms_accessconstraints" "none" "wms_fees" "none" "wms_addresstype" "postal" "wms_address" "Any Street" "wms_city" "Any City" "wms_stateorprovince" "Any state" "wms_postcode" "My Postalcode" "wms_country" "Any Country" "wms_contactperson" "Any Person" "wms_contactorganization" "Any Orga" "wms_contactelectronicmailaddress" "any-email@example.com" "wms_contactvoicetelephone" "Any's telephone number" "wms_srs" "EPSG:31466 EPSG:4326" "wms_feature_info_mime_type" "text/html" "ows_enable_request" "*" END END LAYER NAME riveraxis EXTENT 3590790.616790 5648985.748203 3868521.325854 5922665.254118 DEBUG 5 METADATA "wms_title" "River Axis" END TYPE LINE STATUS ON INCLUDE "dbconnection.include" DATA 'geom FROM "river_axes" USING UNIQUE id USING srid=31466' FILTER "river_id='6'" PROJECTION "init=epsg:31466" END CLASS NAME "riveraxis" STYLE SIZE 5 COLOR "#000000" END END END END